Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"trinh lap code snippets" » "trinh luat code snippets", "trinh luan code snippets", "trinh phap code snippets", "trinh lap cong snippets", "trinh lbm code snippets", "trinh lap code slippers"
"dang hung code snippets" » "dang quang code snippets", "manh hung code snippets", "dang cong code snippets", "dang bug code snippets", "dang hung code slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh lap code snippets") or ("dang hung code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh lap code snippets") OR ("dang hung code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( trinh lap code snippets ) or ( dang hung code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh lap code snippets") or ("dang hung code snippets"))) or ("locating bugs code snippets"))*.